Feeding device and electrical junction box

Abstract

A power-supply unit and an electric junction b are provided. A branch circuit branches a supply route of a 52V-battery into a (n is an integer of 3 or more) branch routes. A merge circuit joins the n branch routes to one supply route. MOSFETs are arranged on the n branch routes respectively. A rated current of each of the MOSFET is equal to or larger than a rated current of loads (12V-load, 52V-load, ECU, and 12V-battery) which are supplied with electric power from the supply route divided by n−1 and less than the rated current divided by n−2.

What is claimed is: 
     
         1 . A feeding device for supplying electric power to a load comprising:
 a branch circuit for branching a supply route of the power into n (n is an integer of 3 or more) branch routes;   a merge circuit for joining the n branch routes to one of the supply route and   a switching unit arranged on the n branch routes respectively,   wherein a rated current of the switching unit is equal to or larger than a rated current of the load divided by n−1 and less than the rated current of the load divided by n−2, the load being supplied with electric power from the supply route.   
     
     
         2 . The feeding device according to  claim 1 , wherein the switching unit is configured of a semiconductor switch. 
     
     
         3 . An electric junction box having the feeding device described in  claim 1 . 
     
     
         4 . An electrical junction box having the feeding device described in  claim 2 .